ChenJiaYing-第三周工作汇报

## 第三周工作汇报
#### 作者：陈家颖、陈梓兴

### 本周进度概述
* 本周已经开始在同一台Linux虚拟机==双人合作搭建==CentOS7.9->Hadoop+MySQL+Zookeeper+Kafka
* 但由于**Kafka4.1.0**的==启动失败==问题，导致时间不足还==未整体完成==，目前陈梓兴Hadoop+MySQL部分只完成了Hadoop（Hadoop可运行，子模块无法运行）

### Kafka问题

```
[root@localhost logs]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /bigdata/server/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: follower
[root@localhost logs]# kafka-s
kafka-server-start.sh               kafka-share-groups.sh               kafka-streams-groups.sh
kafka-server-stop.sh                kafka-storage.sh
kafka-share-consumer-perf-test.sh   kafka-streams-application-reset.sh
[root@localhost logs]# cd ..
[root@localhost zookeeper]# cd ..
[root@localhost server]# cd kafka
[root@localhost kafka]# kafka-server-start.sh config/server.properties
[2025-10-30 16:39:20,945] INFO Registered `kafka:type=kafka.Log4jController` MBean (kafka.utils.Log4jControllerRegistration$)
[2025-10-30 16:39:21,090] ERROR Exiting Kafka due to fatal exception (kafka.Kafka$)
org.apache.kafka.common.config.ConfigException: Missing required configuration "process.roles" which has no default value.
        at org.apache.kafka.common.config.ConfigDef.parseValue(ConfigDef.java:534) ~[kafka-clients-4.1.0.jar:?]
        at org.apache.kafka.common.config.ConfigDef.parse(ConfigDef.java:524) ~[kafka-clients-4.1.0.jar:?]
        at org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:114) ~[kafka-clients-4.1.0.jar:?]
        at org.apache.kafka.server.config.AbstractKafkaConfig.<init>(AbstractKafkaConfig.java:78) ~[kafka-server-4.1.0.jar:?]
        at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:156) ~[kafka_2.13-4.1.0.jar:?]
        at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:159) ~[kafka_2.13-4.1.0.jar:?]
        at kafka.Kafka$.buildServer(Kafka.scala:65) ~[kafka_2.13-4.1.0.jar:?]
        at kafka.Kafka$.main(Kafka.scala:75) [kafka_2.13-4.1.0.jar:?]
        at kafka.Kafka.main(Kafka.scala) [kafka_2.13-4.1.0.jar:?]
```